A secret Destiny mission has been found inside of a story mission, and not only is it challenging, but it also provides a special reward.

The mission can only be accessed by the Daily Heroic story mission, Lost to Light (playing this mission normally won’t work). After loading up the mission, you’ll have to quickly play through most of it, until you come to the door that requires three relics to open. Don’t go through the door. Instead, go past it and into the area in The Shadow Thief strike that houses the Fallen ketch. Once in that area, if you made it through the rest of the story mission quickly enough, then Ghost will mention a Fallen transmission, at which point you’ll have ten minutes to wipe out a ton of Taken.

If you manage to do all that, then the Exotic sniper rifle Black Spindle will be given to you. Note: Even though the image of the weapon below lists the attack at 310, Bungie said it is going to bring it down to 290.

Check the top of this post for a walkthrough of the secret mission, and be sure to let us know if you manage to clear it. Also, our review of The Taken King is up, if you want to give it a look.